AS-Level Chemistry HELP!!!

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gcse0
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#1
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#1
I started Year 12 nearly 2.5 weeks ago.
We are doing the topic of nomenclature of organic compounds and reaction mechanisms in Chemistry.
While revising, I had some doubts that I wanted to clear up...
1. How can you deduce if an atom is an electrophile or nucleophile?
2. Can you give me some examples of electrophile addition and substitution and nucleophile addition and substitution.
P.S : My exam board is OCR
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Kaneki Amano
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#2
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#2
Electrophile definition: Electron pair acceptor. Electro Phile (phile meaning attracting) so this attracts ELECTRONS. Opposites attract so the thing that's doing the attracting has to be POSITIVE
An example of this would be a metal ion eg. Na+ or K+

Nucleophile definition: Electron pair donor.
For example, OH- (Hydroxide ion)

In summary: Electrophiles will be positive and Nucleophiles will be negative

As for question 2. It's really difficult to write out in words. I suggest you go to ASFC Chemistry on YouTube (there's an AS playlist) that should help
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